Burglar-alarm.



A. GOYNE.

BURGLAR ALARM. APPLAIOATION FILED MAR. 23, 1912.

1 ,O96,227, Patented May12, 1914.

COLUMBIA PLANOGRAPH cm, WASHINGTON. D. c

UNITED SATES PATENT FFIC ANTHONY COYNE, OF FORK RIDGE, TENNESSEE, ASSIGNOR- OF ONE-HALF TO BENJAMIN EASTES, OF FORK RIDGE, TENNESSEE.

BURGLAR-ALARM.

Specification of Letters Patent.

Patented May 12, 1914:.

Application filed March 23, 1912. Serial No. 685.818.

To all 10710.net may concern Be it known that I, ANTHONY CoYNE, a citizen of the United States,residing at Fork Ridge, in the county of Claiborne and State of Tennessee, have invented certain new and useful Improvements in Burglar-Alarms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to alarms and more particularly to burglar alarms for doors, windows, etc.

An object of the invention is to provide a burglar alarm which may be so positioned upon a door or window that it may be set to give alarm, should an attempt be made to open the door or window with which said alarm is connected.

Another object of the invention is to provide an alarm of this character which may be secured to the door casing and connected with the latch or lock bolt in such manner that should the bolt be moved to unlatch or unlock the door, the alarm will be caused to sound.

A further object is to provide an alarm of the above stated nature to which may be applied a push button, to permit of the device serving as a door bell as well as an alarm.

Another object is to provide an alarm of this character which may be readily locked against operation as an alarm, when desired, the device still remaining operative as a bell.

Other objects and advantages will be hereinafter more clearly set forth and pointed out in the specification and claim.

In the accompanying drawings which form a part of this application, Figure 1 represents a fragmentary view of a door and door frame with my device in position. Fig. 2 is a cross sectional view on the line 2-2 of Fig. 1, and, Fig. 3 is an elevational view showing the bell supporting plate and parts carried thereby.

Referring more particularly to the drawings in which similar reference numerals designate corresponding parts throughout the several views, 1 represents a door, 2 a knob and 3 the latch bolt controlled by the knob, while 4.- is the casing. These parts may be of any form desired, the bolt 3 being provided in one smooth face with the recess 5 to receive the bent end 6 of the releasing wire 7 which has its opposite end pivoted, by means of a screw 8 or other suitable fastener to the plate 9 which is secured upon the casing 4: by suitable screws 10. A locking wire 11 has its forward end wrapped around the main portion of the releasing wire 7 and then bent outwardly, as shown at 12, the purpose of which will be presently fully stated. The locking wire 11 projects beyond the opposite edge of the plate 9, said wire restlng within a groove 13 in the upper face of the plate 9, which groove serves to retain the wire in proper position, substan tially parallel to the main portion of the releasing wire 7. The free end of the wire 11 is bent upon itself, as shown at 14, and the extremity 15 directed in a position parallel with the main portion of said wire, and rests within a suitable guide groove 16 in the edge of the upper face of the plate 9, said groove being parallel with the groove 13. It will thus be seen that the wire .13 may be readily grasped at or near the bent portion 14 to move said wire 13 back and forth to place the outwardly directed extremity 12 in operative or inoperative position as desired, said extremity when in operative position serving to raise the spring latch 24; upon movement of the bolt 3, as will be later clearly understood. The movement of the rod 11 is limited by its off-set portion 17 working within the cut away por tion 18, provided therefor in the face of the plate 9. The rod 11 is also limited in its forward movement by the turned end wrapped around the rod 7 engaging against the forward wall of the recess 19 in the plate 9.

The substantially V-shaped spring member 20 is wrapped around the screw 21 at its bent portion and has one end projecting beyond the plate 9 and formed into a knob, as shown at 22, it being understood that the member 20 rests within a suitable cut out portion or recess in the face of the plate 9. The member 20 has an off-set portion 23 which engages against the Wire 7 when the alarm is set and slides under said wire when the bent end 6 of said wire is raised by movementof the bolt 3, said movement of the bolt 3causing the bent end 6 of the wire 7 to raise from within the recess 5.

The outwardly directed extremity 12 of t the wire 11 projects through a suitable opening in the base member 25 to engage against the free end of the spring latch 24, which has its opposite end suitably secured to the base member and has the extremity of its free end bent upwardly and enlarged into a head 26, which latter if normally within the path of the hammer arm 27 prevents the hammer 28 from striking gong 29. A suitable push button 30 is carried upon a stem 31 adapted for movement through the door casing 4t and through an opening in the base member 25 beneath the spring latch 2-t for raising the same and permitting swinging of the hammer arm 27 and striking of the ham.- mer 28 against the gong 29, it being understood that the gong 29 is carried upon a shaft 32 having also mounted thereon a spring the spring carrying shaft 32 having a train of gears connected therewith, the train of gears in turn having escapement mechanism to which is connected the hammer arm 27.

The base member 25, as will be understood, is suitably secured upon the plate 9 the rear end of the wire 11 projecting in one direction from between the plate 9 and base member 25, while the forward end of the wire 7 projects in an opposite direction from between the plate 9 and the base member 25; the forward end 22 of the spring member 20 also projecting from between these two parts at a point adjacent the forward end of the wire 7. The forward bent end 6 of the wire 7 is covered and protected by means of the small housing 3 1 positioned thereover and secured to the casing (t, it being understood that the bent extremity of the end 6 projects through a suitable opening 35 within the casing 4 and normally rests within the recess 6 in the face of the bolt 3. Thus it will be seen that when the alarm is set for operation, the bent forward end. 6 of the wire 7 will be raised upon turning of the knob 2 and subsequent inward movement of the bolt 3. The raising of the forward portion of the wire 7 will place the forward outwardly directed extremity 12 of the wire 11 against the spring latch 2st, raising the latter with its head 26'above the hammer arm 27, allowing said arm to operate under the influence of the spring 33, causing the hammer 28 to play upon the gong 29. Upon the upward movementof the forward portion of the wire 7, the oif-set portion 23 of the spring member 20 will move under the forward portion of the wire 7 and retain the same in its upward position, holding the extremity 12 of the wire 11 against the spring latch 2%, preventing the latch 24t from returning to its normal position, thus causing the alarm to sound until the rear end of the wire 11 is grasped and the latter drawn rearwardly to permit the spring latch 24: to return to its normal posi tion. The alarm may then be reset forcing the knob end 22 of the spring member 20 away from the housing 34:, thus withdrawing the oifset portion from under the forward portion of the wire 7, allowiiiig the latter to return to its normal. position after which the wire 11 is again moved forwardly to place its outwardly directed eX- tremity 12 directly beneath the spring latch 24:.

It will be evident, however that the device may be used as a door bell alone when dc sired, the wire 11. being retained in its rearward position to prevent ope 'ation of the device as an alarm upon turning of the knob 2 the bell operating, however, upon the application of pressure to the push button to raise the spring latch 24., This is a special advantage as it may be desirable to render the device inoperative as an alarm during certain hours and operative as an alarm during the remaining hours of every twenty-four hours.

It will be evident that I have provided an alarm of comparatively simple construction and operation and one which may be readily applied to doors, windows or the like and which will be highly eflicient in use. It will also be apparent that this alarm may be manufactured and installed at a reasonable cost and will sound an alarm before the actual operation of opening the door, the alarm being operated upon initial movement of the latch or lock bolt.

What I claim is:

A device of the class described comprising the combination with a bolt; of a gong, a hammer for striking the gong, means for operating the hammer. a spring latch for locking the hammer in inoperative position,

a releasing wire engaging the bolt, a latch 1 ANTHONY GOYNE.

Witnesses SIDNEY BRYANT, A. H. l/VRIGHT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

